This period saw the murder of the Ten Attendants by the forces of Yuan Shao. One leader during this period is credited with developing a repeating crossbow and a south-pointing compass. The later part of this period saw Cao Pi proclaimed emperor. In one major battle during this period, fire ships secured victory against the overwhelming forces of Wei. It began with the Yellow Turban Rebellion and saw the Battle of Red Cliffs and the murder of Dong Zhuo by his adopted son Lü Bu. For 10 points, identify this period named for the number of states 
This period saw the murder of the Ten Attendants by the forces of Yuan Shao. One leader during this period is credited with developing a repeating crossbow and a south-pointing compass. The later part of this period saw Cao Pi proclaimed emperor. In one major battle during this period, fire ships secured victory against the overwhelming forces of Wei. It began with the Yellow Turban Rebellion and saw the Battle of Red Cliffs and the murder of Dong Zhuo by his adopted son Lü Bu. For 10 points, identify this period named for the number of states existing after the fall of the Han Dynasty.
This period saw the murder of the Ten Attendants by the forces of Yuan Shao.
{Three Kingdoms} Period